Tell if the following pair of lines is parallel, perpendicular or neither.
3x – 2y = 16
y = -2/3x + 4

Paralell means has same slope
perpendicular has slopes that multiply to -1

the slopes
for
ax+by=c, slope is -a/b
y=mx+b, slope=m

3x-2y=16, slope=-3/-2=3/2
y=-2/3x+4, slope=-2/3

3/2≠-2/3, so not paralell
try multiplying them
-6/6=-1
perpendicular

they are perpendicular

3x – 2y = 16
2y = 3x - 16
y = 3/2x - 16/3 slope = 3/2
compare with y = -2/3x + 4 slope = -2/3 

 perpendicular